Home / 52,529.40-78,779.70-21,367.80

Finding the Fourth Proportional to 52,529.40, 78,779.70 and 21,367.80

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Solution

The fourth proportional to 52,529.40, 78,779.70 and 21,367.80 is: 32,045.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,529.40 : 78,779.70 = 21,367.80 : x
  2. Step 2: Convert to fraction form
    52,529.40/78,779.70 = 21,367.80/x
  3. Step 3: Cross multiply
    52,529.40x = 78,779.70 × 21,367.80
  4. Step 4: Simplify right side
    52,529.40x = 1,683,348,873.66
  5. Step 5: Solve for x
    x = 1,683,348,873.66/52,529.40
  6. Step 6: Final answer
    x = 32,045.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.